전도성 그래핀 페이스트로 제작된 전극을 이용한 완전탄소 기반 플렉시블 전계효과 트랜지스터
Flexible all-carbon field effect transistor comprising electrodes fabricated from conductive graphene paste
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초록
탄소나노물질인 탄소나노튜브와 그래핀은 높은 전하 이동도, 화학적 안정성, 훌륭한 유연성 등의 우수한 특성을가지고 있으므로 유연한 전자장치 개발에 활발히 연구되고 있다. 본 논문에서는 전도성 그래핀 페이스트 용액 공정을이용하여 FET의 소스, 드레인 전극을 제작하였으며, 채널층 제작을 위해 SWCNT(Single-walled cabon nanotube)를 사용하였다. 제작된 유연한 전계 효과 트랜지스터는 P형 특성을 나타내며 저전압에서 동작한다. 측정 결과에 의하면 본 논문의FET는 3.73cm2/Vs의 이동도를 보였으며, 이는 기존의 CNT기반 FET의 약 12배 정도의 높은 수치이다.
Abstract
Carbon nanotubes and graphene are nanocarbon materials that possess several properties such as high charge mobility, chemical stability, and excellent flexibility, and they are actively studied for developing flexible electronic devices. In this study, source and drain electrodes were fabricated by employing a conductive graphene paste solution-based process, and single-walled carbon nanotubes were incorporated in the channel layer. The fabricated flexible field effect transistor (FET) indicated p-type characteristics and required a low voltage for operation. Furthermore, evaluation results demonstrated that the fabricated FET had an effective mobility of 3.73cm2/Vs, which is twelve times the effective mobility of a conventional carbon-nanotube-based FET.
참고문헌 (8)
- 강석희, "플렉시블", 웨어러블 일렉트로닉스 최신 연구동향, 2014, pp.32(3), 34~42[DOI]
- N. Seong, "Low-voltage single-walled carbon nanotube thin-film transistors fabricated by low-temperature solution-process", Proceedings of the Institute of Electronics Engineers of Korea, pp.79~81 (2015)
- B. C. Kang, "Solution-processed single-wall carbon nanotube transistor arrays for wearable display backplanes", AIP ADVANCES, 8(1), pp.015305~ (2018)
- B. J. Kim, "High-performance flexible graphene field effect transistors with ion gel gate dielectrics", Nano Letters, 10(9), pp.3464~3466 (2010)
- S. K. Lee, "All graphene-based thin film transistors on flexible plastic substrates", Nano Letters, 12(7), pp.3472~3476 (2012)
- H. Koo, "Scalability of carbon-nanotube-based thin film transistors for flexible electronic devices manufactured using an all roll-to-roll gravure printing system", Scientific Reports, 5 (2015)
- S. Y. Jeong, "Highly concentrated and conductive reduced graphene oxide nanosheets by monovalent cation-π interaction: Toward printed electronics", Journal of Advanced Functional Materials, 22(15), pp.3307~3314 (2012)
- F. Sajed, "All-printed and transparent single walled carbon nanotube thin film transistor devices", Applied Physics Letters, 103(14), pp.143303~ (2013)